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Fifth International Conference on Computer Information Science and Artificial Intelligence最新文献

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Multi-master and multi-slave oriented task offloading strategy for real time and low power Internet of Vehicles 面向实时低功耗车联网的多主从任务卸载策略
Jie Yang
With the rapid development of intelligent driving and on-board intelligent applications, the computing power of on-board units is gradually inadequate. Intelligent networked vehicles offloading tasks to cloud servers through the Internet of Vehicles is considered to be a promising method. However, long distance deployment of cloud servers and the instability of return links also bring high time delay. While Mobile Edge Computing (MEC) effectively solves this problem by deploying computing resources to the network edge. Therefore, based on the idea of mobile edge computing, this paper first constructs the local edge collaborative computing model. By comprehensively considering the factors such as user psychology, vehicle speed, acceleration, location, communication ability and computing ability, the utility function of task vehicle and service vehicle is established. Then, according to the Stackelberg game strategy, the interaction behavior between task vehicle and service vehicle is modeled, the Stackelberg cyclic iterative task offloading algorithm in the Internet of Vehicles environment is proposed. It is proved that there is a Nash equilibrium point between service vehicle and task vehicle. Finally, the simulation results show that the algorithm has achieved a balance between task delay and expense, task vehicle utility and service vehicle utility, and has higher performance than other algorithms.
随着智能驾驶和车载智能应用的快速发展,车载单元的计算能力逐渐不足。智能网联汽车通过车联网将任务卸载到云服务器上被认为是一种很有前途的方法。然而,云服务器的远距离部署和返回链路的不稳定性也带来了高时延。移动边缘计算(MEC)通过将计算资源部署到网络边缘,有效地解决了这一问题。因此,基于移动边缘计算的思想,本文首先构建了局部边缘协同计算模型。综合考虑用户心理、车速、加速度、位置、通信能力和计算能力等因素,建立了任务车和服务车的效用函数。然后,根据Stackelberg博弈策略,对任务车与服务车的交互行为进行建模,提出了车联网环境下的Stackelberg循环迭代任务卸载算法。证明了服务车与任务车之间存在纳什均衡点。仿真结果表明,该算法在任务延迟和费用、任务车辆效用和服务车效用之间取得了平衡,性能优于其他算法。
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引用次数: 0
IoT and big data analysis based prevention and intervention network system for breast cancer susceptible people 基于物联网和大数据分析的乳腺癌易感人群预防干预网络系统
Y. Qin, Yueyi Liu, B. Yang, Juan Luo, Yan Zhang, Yihan Liao, Zihan Wang
The medical intervention after a disaster event is the focus of government and citizen's attention in the public health and clinical medicine industries. For breast cancer, which has a high incidence in Russia and Belarus, the author combines the IoT management system and big data analysis to build a model of the framework and a preventive medicine system for a framework analysis and outlook.
灾后医疗干预是公共卫生和临床医学领域政府和公民关注的焦点。针对俄罗斯和白俄罗斯发病率较高的乳腺癌,笔者结合物联网管理系统和大数据分析,构建框架模型和预防医学系统,进行框架分析和展望。
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引用次数: 0
Activity recognition based on adaptive window and broad learning 基于自适应窗口和广义学习的活动识别
Zhipeng Yu, Licai Zhu
With the widespread use of sensing elements in commercial equipment, action recognition technology is required to be more practical in people's life, especially the stable and accurate recognition. Among them, using sliding window for motion perception is an effective recognition method. However, most of the current recognition models are designed for a single action, which not only has poor recognition stability, but also cannot effectively recognize the action. This paper presents a method of action recognition based on adaptive window and broad learning, and designs an action recognition system EVM, the system effectively preprocesses the action data and realizes the accurate recognition of actions. Firstly, EVM smooth the source action data. Then, this paper proposes an extreme value filtering method to avoid the interference of peak/valley extreme points and ensures the effectiveness of action division through the adaptive window. Finally, a recognition model based on broad learning is used to classify action behaviors. According to the comparison and verification of a large number of experiments, the EVM system has a recognition accuracy as high as 97.91%, which is much better and faster than the CNN model.
随着传感元件在商用设备中的广泛应用,对动作识别技术在人们生活中的实用性提出了更高的要求,尤其是动作识别的稳定性和准确性。其中,利用滑动窗口进行运动感知是一种有效的识别方法。然而,目前大多数识别模型都是针对单一动作设计的,不仅识别稳定性差,而且不能有效识别动作。提出了一种基于自适应窗口和广义学习的动作识别方法,设计了一个动作识别系统EVM,该系统对动作数据进行了有效的预处理,实现了动作的准确识别。首先,EVM平滑源动作数据。然后,本文提出了一种极值滤波方法,以避免峰谷极值点的干扰,并通过自适应窗口保证动作分割的有效性。最后,采用基于广义学习的识别模型对动作行为进行分类。经过大量实验的对比验证,EVM系统的识别准确率高达97.91%,大大优于CNN模型。
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引用次数: 0
AIACT-GAN: CT reconstruction based on dynamic attention and generative adversarial networks 基于动态注意力和生成对抗网络的CT重建
Yufeng Wang, Hongwen Liu, X. Lv
X-ray imaging is already a very mature technology. It is cheap and the radiation dose to the patient is very low. However, x-ray imaging can only provide two-dimensional information, not three-dimensional information of the patient's body. Computed Tomography (CT) can provide spatial information about the interior of the human body, giving the doctor more useful information, and the radiation dose to the patient is significantly higher. This is because conventional CT imaging techniques require a lot of X-rays for whole-body scanning. We introduce an end-to-end Generative Adversarial Network (GAN) network approach, AIACT-GAN, for the reconstruction of lung CT volumes directly from biplane x-ray images. In this work we reconstructed the CT in the presence of low radiation. We extracted features using a dynamic attention module and a dense connectivity module. In addition, in the fusion part we incorporated a contextual fusion module. The experimental results show that high quality CT can be reconstructed from x-ray images using AIACT-GAN.
x射线成像已经是一项非常成熟的技术。它很便宜,对病人的辐射剂量也很低。然而,x射线成像只能提供二维信息,不能提供患者身体的三维信息。计算机断层扫描(CT)可以提供人体内部的空间信息,为医生提供更多有用的信息,对患者的辐射剂量明显更高。这是因为传统的CT成像技术需要大量的x射线进行全身扫描。我们介绍了一种端到端生成对抗网络(GAN)网络方法,AIACT-GAN,用于直接从双平面x射线图像重建肺部CT体积。在本研究中,我们重建了低辐射下的CT。我们使用动态注意力模块和密集连接模块来提取特征。此外,在融合部分,我们加入了上下文融合模块。实验结果表明,利用AIACT-GAN可以从x射线图像中重建出高质量的CT。
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引用次数: 0
Long-term stock price forecast based on PSO-informer model 基于PSO-informer模型的长期股价预测
H. Liu, Deng Chen, Wei Wei, Ziqiang Wei
The long-term prediction of stock prices provides an important reference for quantitative investment decisions. Aiming at the problem of insufficient accuracy of long-term series prediction in existing stock forecasting models, this paper proposes a long-term stock price series forecasting method based on PSO-Informer. First, 43 kinds of technical indicator factors and K-line data were selected to construct the input data, and then the PSO-Informer model was used to predict the future 60 time points of the stock closing price. In the model training process, the particle swarm algorithm is used to optimize the parameters of the Informer network. Based on the five-minute K-line data of the SSE 50 stock index and the CSI 300 stock index, experimental research was conducted respectively. Taking the accuracy of the long-term stock price prediction overall trend as the evaluation index, and the prediction accuracy reaches 68.2% and 67.5% respectively. The comparison experiments with ARIMA, Prophet, PSO-LSTM and Informer prediction models show that the model has the best performance and is practical.
股票价格的长期预测为定量投资决策提供了重要参考。针对现有股票预测模型长期序列预测精度不足的问题,提出了一种基于PSO-Informer的长期股票价格序列预测方法。首先选取43种技术指标因子和k线数据构建输入数据,然后利用PSO-Informer模型预测未来60个时间点的股票收盘价。在模型训练过程中,采用粒子群算法对Informer网络的参数进行优化。基于上证50指数和沪深300指数的5分钟k线数据,分别进行了实验研究。以长期股价预测总体趋势的准确性为评价指标,预测准确率分别达到68.2%和67.5%。与ARIMA、Prophet、PSO-LSTM和Informer预测模型的对比实验表明,该模型具有较好的性能和实用性。
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引用次数: 0
Analysis of heterogeneous data model based on federated learning 基于联邦学习的异构数据模型分析
Yating Gao, Xingjie Huang, Jinmeng Zhao, Jing Zhang, Xinyu Liu
The rapid development of edge network devices has led to the explosive growth of their data, and the difficulty of dealing with heterogeneous data in edge devices has been further increased. To solve the problem of heterogeneous data fusion without interaction, this paper proposes a data heterogeneous model analysis based on federated learning. Preprocess the multi-source heterogeneous data to obtain the main features of the condensed data. Then, the multi-source heterogeneous data nodes are positioned to avoid multi-fusion results, and Spatio-temporal correlation degree of the multi-source heterogeneous data is calculated to improve the accuracy of fusion. Finally, a multi-source heterogeneous data fusion model is established based on federated learning to ensure the security of data fusion. Compared with the traditional model, the data fusion of the proposed model is more stable, and the error is smaller. The effectiveness of the proposed model is verified by the stability and accuracy of the fusion of the heterogeneous data. The multi-source heterogeneous data fusion model studied in this paper can improve the quality of Internet of Things data and promote the development of edge devices in China.
边缘网络设备的快速发展导致其数据呈爆炸式增长,进一步增加了边缘设备中异构数据的处理难度。为解决异构数据无交互融合问题,提出了一种基于联邦学习的数据异构模型分析方法。对多源异构数据进行预处理,得到压缩数据的主要特征。然后,对多源异构数据节点进行定位,避免多融合结果,并计算多源异构数据的时空关联度,提高融合精度;最后,建立了基于联邦学习的多源异构数据融合模型,保证了数据融合的安全性。与传统模型相比,该模型的数据融合更稳定,误差更小。异构数据融合的稳定性和准确性验证了该模型的有效性。本文研究的多源异构数据融合模型可以提高物联网数据质量,促进中国边缘设备的发展。
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引用次数: 0
Numerical simulation study on impacts of the Xinhengsha reclamation project on salinity in the Yangtze Estuary 长江口新横沙填海工程对盐度影响的数值模拟研究
H. Lyu, Junjie Bian, Yu-Duo Hao, Runli Tao
The impacts of the Xinhengsha Reclamation Project on saltwater intrusion and freshwater resources in the Yangtze Estuary is simulated by Ecom-si. It is found that the salinity in the North Branch decreases slightly, the salinity in the North Channel and South Channel decreases obviously after the implementation of the Xinhengsha Reclamation Project. In addition, the implementation of the Xinhengsha Reclamation Project has a significant impact on the water intaking of the three reservoirs (Dongfengxisha Reservoir, Chenhang Reservoir, Qingcaosha Reservoir). In a spring-neap tide cycle, after the implementation of the Xinhengsha Reclamation Project, Dongfengxisha Reservoir is shortened from a maximum of 7 days before the project to 6 days, Chenhang Reservoir is shortened from 3.5 days to 0 days, Qingcaosha Reservoir is shortened from 4 days to 2.5 days. The above research results show that the implementation of the Xinhengsha Reclamation Project is beneficial to the water intaking of the three reservoirs.
利用Ecom-si软件模拟了新横沙围垦工程对长江口海水入侵和淡水资源的影响。结果表明,新横沙填海工程实施后,北支盐度略有下降,北、南航道盐度下降明显。此外,新横沙填海工程的实施对东风西沙水库、陈行水库、青草沙水库三个水库的取水产生了重大影响。在一个大潮-小潮周期中,新横沙围垦工程实施后,东风西沙水库由工程实施前最多7天缩短为6天,陈行水库由3.5天缩短为0天,青草沙水库由4天缩短为2.5天。上述研究结果表明,新横沙围垦工程的实施有利于三个水库的取水。
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引用次数: 0
Galaxy morphology classification based on ResNeXt 基于ResNeXt的星系形态分类
Yang Yu
The morphology of galaxies can reflect the physical properties of galaxies themselves, and the classification of their morphology plays an important role in the subsequent analysis and research.In this paper, we use the photometry image of galaxy in GalaxyZoo2, select the data set according to the threshold and perform data augmentation, and apply ResNeXt to the classification of galaxy morphology, which realizes the automatic extraction, recognition and classification of galaxy morphological features.Based on the results of ResNeXt's galaxy morphology classification, five groups of comparative experiments are carried out.The five groups of comparison experiments include comparing different versions of ResNeXt model, comparing classical convolutional neural network model, comparing the latest image classification model in the last two years, comparing the simplest convolutional neural network model, and comparing the human eye.The experimental results show that the galaxy morphology classification accuracy based on ResNeXt101 network model is the highest.
星系的形态可以反映星系本身的物理性质,对其形态进行分类对后续的分析和研究具有重要作用。本文利用GalaxyZoo2中的星系测光图像,根据阈值选择数据集并进行数据增强,将ResNeXt应用于星系形态分类,实现了星系形态特征的自动提取、识别和分类。基于ResNeXt的星系形态分类结果,进行了五组对比实验。五组对比实验包括:对比不同版本的ResNeXt模型、对比经典卷积神经网络模型、对比近两年最新的图像分类模型、对比最简单的卷积神经网络模型、对比人眼。实验结果表明,基于ResNeXt101网络模型的星系形态分类准确率最高。
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引用次数: 0
Research on collaborative knowledge innovation mode mining based on user behavior in open source community 基于用户行为的开源社区协同知识创新模式挖掘研究
Jun Wang, Hongde Liu, Yani Wang, Xinyu Liang
Collaborative knowledge innovation activities are conducive to the rapid development of knowledge economy. However, because the collaborative knowledge innovation is usually hidden in the complex network information transmission process, the efficiency and quality of knowledge innovation behaviors may be greatly affected. We take collaborative innovation participants, collaborative innovation teams and collaborative innovation achievements as the constituent elements and construct the research framework of collaborative knowledge innovation mode mining. Then, we use Apriori algorithm to mine the collaborative knowledge innovation mode and obtain the transformation mode. The results show that when the main contributors to a project are high active users, the project has a greater probability of showing a trend of high innovation activity and is more likely to become a high-quality project. The findings will help to improve the collaborative knowledge innovation ability of online community platforms and the efficiency of knowledge diffusion.
协同知识创新活动有利于知识经济的快速发展。然而,由于协同知识创新往往隐藏在复杂的网络信息传递过程中,可能会极大地影响知识创新行为的效率和质量。以协同创新参与者、协同创新团队和协同创新成果为构成要素,构建了协同知识创新模式挖掘的研究框架。然后,利用Apriori算法挖掘协同知识创新模式,得到协同知识的转化模式。结果表明,当项目的主要贡献者为高活跃用户时,项目呈现高创新活跃趋势的概率更大,更有可能成为高质量项目。研究结果将有助于提高网络社区平台的协同知识创新能力和知识扩散效率。
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引用次数: 0
VisMole: a molecular representation based on voxel for molecular property prediction VisMole:基于体素的分子表征,用于分子性质预测
Qiang Tong, Jiahao Shen, Xiulei Liu
To make computers understand the molecules, the first and important thing is to represent molecules in a proper way, which will affect the efficiency of chemistry tasks like property prediction and molecular design. In this work, we introduce a molecular representation for noncrystalline small molecules based on the theory of quantum physics. This representation captures the microscopic spatial structure of the molecule, which ensures it reflects more visual perception information about the molecule. We use Drug3DNet as our baseline and test the efficiency of our representation. By comparing with several other representations, we prove that our representation performs better on most of the properties.
要使计算机理解分子,首先也是最重要的是用合适的方式表示分子,这将影响到诸如性质预测和分子设计等化学任务的效率。在这项工作中,我们介绍了基于量子物理理论的非结晶小分子的分子表示。这种表示捕获了分子的微观空间结构,这确保它反映了更多关于分子的视觉感知信息。我们使用Drug3DNet作为基线,并测试我们表示的效率。通过与其他几种表示的比较,我们证明了我们的表示在大多数性质上表现得更好。
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引用次数: 0
期刊
Fifth International Conference on Computer Information Science and Artificial Intelligence
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